JP5441480B2 - Lubricating oil composition - Google Patents
Lubricating oil composition Download PDFInfo
- Publication number
- JP5441480B2 JP5441480B2 JP2009096013A JP2009096013A JP5441480B2 JP 5441480 B2 JP5441480 B2 JP 5441480B2 JP 2009096013 A JP2009096013 A JP 2009096013A JP 2009096013 A JP2009096013 A JP 2009096013A JP 5441480 B2 JP5441480 B2 JP 5441480B2
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- formula
- composition
- oil composition
- wet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000203 mixture Substances 0.000 title claims description 24
- 239000010687 lubricating oil Substances 0.000 title claims description 18
- -1 aliphatic 1,2-diol compound Chemical class 0.000 claims description 30
- 239000003921 oil Substances 0.000 claims description 16
- 239000002199 base oil Substances 0.000 claims description 8
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 239000002518 antifoaming agent Substances 0.000 claims description 7
- 239000002480 mineral oil Substances 0.000 claims description 7
- 235000010446 mineral oil Nutrition 0.000 claims description 7
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- GBHRVZIGDIUCJB-UHFFFAOYSA-N hydrogenphosphite Chemical compound OP([O-])[O-] GBHRVZIGDIUCJB-UHFFFAOYSA-N 0.000 claims description 6
- 229920000193 polymethacrylate Polymers 0.000 claims description 6
- FLAJFZXTYPQIBY-CLFAGFIQSA-N bis[(z)-octadec-9-enyl] hydrogen phosphite Chemical group CCCCCCCC\C=C/CCCCCCCCOP(O)OCCCCCCCC\C=C/CCCCCCCC FLAJFZXTYPQIBY-CLFAGFIQSA-N 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 239000003112 inhibitor Substances 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 125000003342 alkenyl group Chemical group 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 239000003599 detergent Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- FSYKKLYZXJSNPZ-UHFFFAOYSA-N sarcosine Chemical compound C[NH2+]CC([O-])=O FSYKKLYZXJSNPZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 108010077895 Sarcosine Proteins 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 229940043230 sarcosine Drugs 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 17
- 239000003607 modifier Substances 0.000 description 7
- 230000003068 static effect Effects 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 150000001298 alcohols Chemical class 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- BTOOAFQCTJZDRC-UHFFFAOYSA-N 1,2-hexadecanediol Chemical compound CCCCCCCCCCCCCCC(O)CO BTOOAFQCTJZDRC-UHFFFAOYSA-N 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 4
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 150000002009 diols Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 239000003981 vehicle Substances 0.000 description 3
- DWANEFRJKWXRSG-UHFFFAOYSA-N 1,2-tetradecanediol Chemical compound CCCCCCCCCCCCC(O)CO DWANEFRJKWXRSG-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 206010010904 Convulsion Diseases 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229960000541 cetyl alcohol Drugs 0.000 description 2
- 229940125782 compound 2 Drugs 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 229920013639 polyalphaolefin Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229960002317 succinimide Drugs 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- LPMBTLLQQJBUOO-KTKRTIGZSA-N (z)-n,n-bis(2-hydroxyethyl)octadec-9-enamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N(CCO)CCO LPMBTLLQQJBUOO-KTKRTIGZSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 229940126214 compound 3 Drugs 0.000 description 1
- 229940125898 compound 5 Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- GTZOYNFRVVHLDZ-UHFFFAOYSA-N dodecane-1,1-diol Chemical compound CCCCCCCCCCCC(O)O GTZOYNFRVVHLDZ-UHFFFAOYSA-N 0.000 description 1
- ZITKDVFRMRXIJQ-UHFFFAOYSA-N dodecane-1,2-diol Chemical compound CCCCCCCCCCC(O)CO ZITKDVFRMRXIJQ-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- SRYDOKOCKWANAE-UHFFFAOYSA-N hexadecane-1,1-diol Chemical compound CCCCCCCCCCCCCCCC(O)O SRYDOKOCKWANAE-UHFFFAOYSA-N 0.000 description 1
- XPXMKIXDFWLRAA-UHFFFAOYSA-N hydrazinide Chemical compound [NH-]N XPXMKIXDFWLRAA-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000004668 long chain fatty acids Chemical class 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000010688 mineral lubricating oil Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- FETBCQJCOOEKPM-UHFFFAOYSA-N pentadecane-1,2-diol Chemical compound CCCCCCCCCCCCCC(O)CO FETBCQJCOOEKPM-UHFFFAOYSA-N 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- 150000003900 succinic acid esters Chemical class 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000010689 synthetic lubricating oil Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000003580 thiophosphoric acid esters Chemical class 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- IOYXJNDDBALLFR-UHFFFAOYSA-N tridecane-1,2-diol Chemical compound CCCCCCCCCCCC(O)CO IOYXJNDDBALLFR-UHFFFAOYSA-N 0.000 description 1
- PHYFQTYBJUILEZ-IUPFWZBJSA-N triolein Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC PHYFQTYBJUILEZ-IUPFWZBJSA-N 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/04—Hydroxy compounds
- C10M129/06—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/08—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least 2 hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/28—Amides; Imides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/049—Phosphite
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/02—Unspecified siloxanes; Silicones
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
本発明は、優れた湿式ブレーキ摩擦特性と耐摩耗性及び酸化安定性を有する農業用トラクターや建設機械用車両の共通潤滑油として好適な湿式ブレーキ用潤滑油組成物に関する。 The present invention relates to a lubricating oil composition for a wet brake suitable as a common lubricating oil for agricultural tractors and construction machinery vehicles having excellent wet brake friction characteristics, wear resistance and oxidation stability.
農業用トラクターの湿式ブレーキシステムでは、踏力に見合ったブレーキ性能が必要であるが、同時にその摩擦部分ですべりによる異音や異常振動を防止する性能も要求される。具体的には静摩擦係数は高いほうがブレーキ性能としては好ましいが、止まる直前で耐スティックスリップ現象による鳴きや異常振動を併発しやすい。したがって、ブレーキの掛け始めのようにすべり速度が大きいところで動摩擦係数を上げ、ブレーキが止まるような速度が低いところでは静摩擦係数が低い摩擦特性にすれば、良好なブレーキ停止性能と耐スティックスリップ特性を両立できることになる。 Agricultural tractor wet braking systems require braking performance commensurate with pedaling force, but at the same time, the friction part is also required to prevent abnormal noise and abnormal vibration caused by sliding. Specifically, a higher coefficient of static friction is preferable for braking performance, but it is likely to cause squeal and abnormal vibration due to a stick-slip phenomenon immediately before stopping. Therefore, if the friction coefficient is increased when the sliding speed is high, such as at the start of braking, and the static friction coefficient is low when the braking speed is low, good brake stop performance and stick-slip resistance can be achieved. It will be compatible.
このように摩擦特性を分類すると、良好なブレーキ停止性能と耐スティックスリップ特性を両立するには動摩擦係数が高く、静摩擦係数が低いとμs/μdの数値は小さくなり、逆に、ブレーキ停止性能と耐スティックスリップ特性が劣ると動摩擦係数が低く、静摩擦係数が高くなりμs/μdの数値は大きくなるように、この比率の大小を求めることで特性を把握することが可能である。 If the friction characteristics are classified in this way, the dynamic friction coefficient is high in order to achieve both good brake stop performance and stick-slip resistance, and if the static friction coefficient is low, the value of μs / μd becomes small. If the stick-slip resistance is poor, the dynamic friction coefficient is low, the static friction coefficient is high, and the value of μs / μd is large.
湿式クラッチや湿式ブレーキ用の潤滑油に必要な摩擦特性を付与するために、摩擦調整剤(Friction Modifier:FM)を配合するのが一般的である。そしてこの摩擦調整剤としては、脂肪酸、エステル系化合物、アルコール系化合物、アミン系化合物、アミド系化合物、リン化合物系、硫黄化合物系、固体潤滑剤等が用いられている。 In general, a friction modifier (FM) is blended in order to impart necessary friction characteristics to the lubricating oil for wet clutches and wet brakes. As the friction modifier, fatty acids, ester compounds, alcohol compounds, amine compounds, amide compounds, phosphorus compounds, sulfur compounds, solid lubricants, and the like are used.
摩擦調整剤は、ブレーキ材やクラッチ材の表面に吸着して吸着被膜を形成し、この被膜同士の摩擦抵抗・引き剥がし抵抗が摩擦力となるが、吸着力が大きいとこの摩擦力が大きくなる。一方、吸着力が小さいと容易に引き剥がされる結果、摩擦力は小さくなる。この吸着力がすべり速度が大きい場合と小さい場合でどの程度変化するかが湿式摩擦特性を決定し、それが上記の動摩擦係数と静摩擦係数に関係してくる。 The friction modifier adsorbs on the surface of the brake material or clutch material to form an adsorbed film, and the frictional resistance / peeling resistance between the films becomes the frictional force. If the adsorbing force is large, the frictional force increases. . On the other hand, if the attractive force is small, the frictional force becomes small as a result of being easily peeled off. The wet friction characteristic determines how much the adsorption force changes depending on whether the sliding speed is large or small, and is related to the dynamic friction coefficient and the static friction coefficient.
脂肪酸は吸着特性は優れているが、熱酸化安定性に劣り、また水分離性も悪い。その他の、エステル系化合物、アルコール系化合物、アミド系化合物の配合は、個々の化合物の構造などにより親油性や吸着力は異なって来る。即ち、エステル系化合物は水混入時に加水分解性が問題となり、アミン系化合物は、高温下でのラッカー生成を生じやすい、アルコール系化合物はFMとしての親油性が弱いなど、夫々に良い点と悪い点を有している。 Fatty acids have excellent adsorption properties, but have poor thermal oxidation stability and poor water separation. The blending of other ester compounds, alcohol compounds, and amide compounds differs in lipophilicity and adsorption power depending on the structure of each compound. That is, ester compounds have a problem of hydrolyzability when mixed with water, amine compounds tend to generate lacquer at high temperatures, and alcohol compounds have weak lipophilicity as FM. Has a point.
湿式ブレーキ用潤滑剤組成物に関するものとして、例えば特許文献1および特許文献2が挙げられるが、前者では摩擦調整剤として酸性燐酸エステルアミン塩、オレイン酸、オレイン酸ジエタノールアミド、オレイン酸トリグリセリドやステアリルアルコールが紹介されており、一方、後者では炭素数8以上の高級アルコールとグリセリンとのエーテルおよびりん酸エステル化合物が紹介されている。また特許文献3においては摩擦調整剤としてジオールとフォスフェートの組み合わせが紹介されている。 Examples of the wet brake lubricant composition include Patent Document 1 and Patent Document 2, and in the former, acidic phosphate ester amine salt, oleic acid, oleic acid diethanolamide, oleic acid triglyceride and stearyl alcohol are cited as friction modifiers. On the other hand, in the latter, ethers and phosphate compounds of higher alcohols having 8 or more carbon atoms and glycerin are introduced. In Patent Document 3, a combination of diol and phosphate is introduced as a friction modifier.
本発明は、上述したように、ブレーキの掛け始めのようにすべり速度が大きいところで動摩擦係数を上げ、ブレーキが止まるような速度が低いところでは静摩擦係数が低い摩擦特性を有した、例えば農業用トラクターのような大型車両用の湿式ブレーキシステムに有効な、ブレーキ停止性能と耐スティックスリップ特性を両立した潤滑油組成物の提供を目的としている。 As described above, the present invention, for example, an agricultural tractor having a friction characteristic that increases the dynamic friction coefficient when the sliding speed is high, such as when the brake is applied, and has a low static friction coefficient when the speed at which the brake stops is low. It is an object of the present invention to provide a lubricating oil composition that is effective in wet braking systems for large vehicles such as the above and has both brake stop performance and stick-slip resistance.
本発明の第1は、鉱油および合成油を基油として、(A)下記一般式(式1)で示される脂肪族1、2−ジオール化合物を組成物全量基準で0.01から0.3質量%、および(B)一般式(式2)で示されるジアルケニルハイドロジェンフォスファイトを組成物全量基準で0.05から5質量%を含有し、マイクロクラッチ試験における40℃のμ3/μ38の比が0.8以下である湿式ブレーキ用潤滑油組成物に関する。
CnH2n+2O2またはCnH2nO2 (式1)
(炭素数nは12から16である)
(RO)2PH=O (式2)
(Rは炭素数が14から18のアルケニル基)
本発明の第2は、前記ジアルケニルハイドロジェンフォスファイトが、ジオレイルハイドロジェンフォスファイトであることを特徴とする、請求項1に記載の湿式ブレーキ用潤滑油組成物に関する。
本発明の第3は、請求項1または2に記載の湿式ブレーキ用潤滑油組成物に、さらに、金属清浄分散剤、無灰分散剤、ジアルキルジチオりん酸亜鉛、ヒンダードフェノール系酸化防止剤、アミン系酸化防止剤、ザルコシン系防錆剤、ポリメタクリレート系粘度向上剤およびシリコーン系消泡剤を少なくとも1種類配合した湿式ブレーキ用潤滑油組成物に関する。
In the first aspect of the present invention, mineral oil and synthetic oil are used as base oils, and (A) an aliphatic 1,2-diol compound represented by the following general formula (formula 1) is 0.01 to 0.3 based on the total amount of the composition. % By weight, and (B) 0.05 to 5% by weight of dialkenyl hydrogen phosphite represented by the general formula (Formula 2) based on the total amount of the composition, The present invention relates to a lubricating oil composition for wet brakes having a ratio of 0.8 or less.
C n H 2n + 2 O 2 or C n H 2n O 2 (Formula 1)
(The carbon number n is 12 to 16)
(RO) 2 PH = O (Formula 2)
(R is an alkenyl group having 14 to 18 carbon atoms)
The second aspect of the present invention relates to the lubricating oil composition for wet brakes according to claim 1, wherein the dialkenyl hydrogen phosphite is dioleoyl hydrogen phosphite.
According to a third aspect of the present invention, the wet brake lubricating oil composition according to claim 1 or 2 further comprises a metal detergent dispersant, an ashless dispersant, a zinc dialkyldithiophosphate, a hindered phenol antioxidant, an amine. The present invention relates to a lubricating oil composition for wet brakes containing at least one type of antioxidant, sarcosine rust inhibitor, polymethacrylate viscosity improver and silicone antifoaming agent.
本発明は、例えば農業用トラクターのような大型車両用の湿式ブレーキシステム用の潤滑剤として有効な、ブレーキ停止性能と耐スティックスリップ特性がともに改善された潤滑油組成物の提供にある。 An object of the present invention is to provide a lubricating oil composition which is effective as a lubricant for a wet brake system for a large vehicle such as an agricultural tractor and has both improved brake stop performance and stick-slip resistance.
本発明は、前述したような先行技術の改良に係わり、アルコール系化合物の摩擦調整剤の問題点を克服すべく鋭意研究を重ねた結果、特別な構造を持ったアルコール系化合物の摩擦調整剤と特定のりん酸エステルを組み合わせて、マイクロクラッチ試験で、3mm/sの摩擦係数と38mm/sの摩擦係数の比、すなわち40℃のμ3/μ38の比率を0.8以下、好ましくは0.5〜0.8、より好ましく0.6〜0.8に留めることでブレーキ性能ばかりでなく優れた耐スティックスリップ性をも有していることを見出し、これを利用した湿式ブレーキ用の潤滑油組成物を発見するに至った。 The present invention relates to the improvement of the prior art as described above, and as a result of earnest research to overcome the problems of alcohol compound friction modifiers, alcohol compound friction modifiers having a special structure and In combination with a specific phosphate ester, the ratio of the friction coefficient of 3 mm / s to the friction coefficient of 38 mm / s, that is, the ratio of μ3 / μ38 at 40 ° C. is 0.8 or less, preferably 0.5 -0.8, more preferably 0.6-0.8, it has been found that it has not only brake performance but also excellent stick-slip resistance, and a lubricating oil composition for wet brakes using this I came to discover things.
本発明組成物を詳述すると、その一つの実施態様は、100℃における粘度が約1〜50cStの鉱物性潤滑油あるいはその精製品(以下、「鉱油」という)および100℃における粘度が約1〜50cStの合成潤滑油基材の中から選ばれる潤滑油基油に対し、式1で示されるアルコール成分(A)を0.01〜0.3質量%の割合で鉱油や炭化水素系の合成油に配合したものである。これより少ないと、本来の効果を発揮せず、逆に多いと油への溶解性に問題を起こすことがある。また溶解性を上げるために少量のエステルなどを加えればさらに添加量を増やすことが可能である。また、グリースなどの用途には、基油へ完全に溶解する必要がないために、さらに添加量を増やすことも可能である。 The composition of the present invention will be described in detail. One embodiment thereof is a mineral lubricating oil having a viscosity of about 1 to 50 cSt at 100 ° C. or a refined product thereof (hereinafter referred to as “mineral oil”) and a viscosity of about 1 at 100 ° C. Mineral oil or hydrocarbon-based synthesis of the alcohol component (A) represented by the formula 1 in a proportion of 0.01 to 0.3% by mass with respect to a lubricating base oil selected from a synthetic lubricating oil base of ˜50 cSt It is blended with oil. If it is less than this, the original effect will not be exhibited, while if it is more, the solubility in oil may be problematic. If a small amount of ester is added to increase the solubility, the amount added can be further increased. Moreover, since it is not necessary to completely dissolve in the base oil for applications such as grease, the amount added can be further increased.
CnH2n+2O2またはCnH2nO2(炭素数nは12から16である)(式1) C n H 2n + 2 O 2 or C n H 2n O 2 (the carbon number n is 12 to 16) (formula 1)
上記脂肪族アルコール成分は、具体的には炭素数が12から16で、OH基を2つ有する脂肪族1,2−ジオールである。脂肪族部分は、アルキル基、アルケニル基のどちらでも構わない。
その例として、1,2−ドデカンジオール、1,2−トリデカンジオール、1,2−テトラデカンジオール、1,2−ペンタデカンジオール、1,2−ヘキサデカンジオールが挙げられる。
The aliphatic alcohol component is specifically an aliphatic 1,2-diol having 12 to 16 carbon atoms and having two OH groups. The aliphatic part may be either an alkyl group or an alkenyl group.
Examples thereof include 1,2-dodecanediol, 1,2-tridecanediol, 1,2-tetradecanediol, 1,2-pentadecanediol, and 1,2-hexadecanediol.
そして、式2で示されるりん化合物(B)は、組成物全量基準で0.05から5質量%を含有させる。
(RO)2PH=O (式2)
(Rは炭素数が14から18のアルケニル基)
このジアルケニルハイドロジェンフォスファイトは、酸性りん酸エステルと比べて酸性がないため、潤滑油の酸化安定性を損なわない特徴がある。特にジオレイルハイドロジェンフォスファイトが好ましい。
And the phosphorus compound (B) shown by Formula 2 is made to contain 0.05 to 5 mass% on the basis of the total amount of the composition.
(RO) 2 PH = O (Formula 2)
(R is an alkenyl group having 14 to 18 carbon atoms)
Since this dialkenyl hydrogen phosphite is less acidic than an acidic phosphate ester, it has a feature that does not impair the oxidation stability of the lubricating oil. Dioleyl hydrogen phosphite is particularly preferable.
上記の(A)成分、(B)成分のいずれも配合量が少なすぎると添加効果が十分に現れず、また多すぎても効果の向上は期待できず、かえってコスト高となって不利である。それらを単独ではなく、組み合わせることで相乗的に性能を改善できることを見出したのである。 If both of the above components (A) and (B) are too small, the effect of addition will not be sufficiently exhibited, and if the amount is too large, improvement of the effect cannot be expected, which is disadvantageous because of high costs. . They discovered that performance can be improved synergistically by combining them, not alone.
本発明の潤滑油組成物には、上記(A)成分、(B)成分の他に、目的に応じて通常使用されている公知の添加剤、例えば、金属清浄分散剤、無灰分散剤、焼き付き摩耗防止剤、酸化防止剤、腐食防止剤、粘度指数向上剤、流動点降下剤、消泡剤等が配合される。 In addition to the above components (A) and (B), the lubricating oil composition of the present invention includes known additives that are usually used depending on the purpose, such as metal detergent dispersants, ashless dispersants, and seizures. Antiwear agents, antioxidants, corrosion inhibitors, viscosity index improvers, pour point depressants, antifoaming agents and the like are blended.
本発明の鉱油系基油としては、具体的には、原油を常圧蒸留して得られる常圧残油を減圧蒸留して得られた潤滑油留分を、溶剤脱れき、溶剤抽出、水素分解、溶剤脱ろう、水素化精製等の処理を1つ以上行って精製したもの、あるいはワックス異性化鉱油、フィッシャートロプシュプロセス等により製造されるGTL WAX(ガストゥリキッドワックス)を異性化する手法で製造される潤滑油基油などが例示できる。
また、合成油としては、例えば、ポリα−オレフィン(PAO)、α−オレフィンコポリマー、ポリブテン、アルキルベンゼン、ポリオールエステル、二塩基酸エステル、ポリオキシアルキレングリコール、ポリオキシアルキレングリコールエステル、ポリオキシアルキレングリコールエーテル、ヒンダードエステル、シリコーンオイルなどを挙げることができる。上記のように、これらの合成油は、それぞれ単独で、あるいは二種以上を組み合わせて使用することができ、さらに鉱油と合成油を組み合わせて使用することができる。
As the mineral base oil of the present invention, specifically, the lubricating oil fraction obtained by distillation under reduced pressure of atmospheric residual oil obtained by atmospheric distillation of crude oil is subjected to solvent desorption, solvent extraction, hydrogen A method of isomerizing GTL WAX (gas-tri-liquid wax) produced by one or more treatments such as decomposition, solvent dewaxing, hydrorefining, etc., or wax isomerized mineral oil, Fischer-Tropsch process, etc. Examples of the lubricant base oil to be manufactured can be given.
Synthetic oils include, for example, poly α-olefin (PAO), α-olefin copolymer, polybutene, alkylbenzene, polyol ester, dibasic acid ester, polyoxyalkylene glycol, polyoxyalkylene glycol ester, polyoxyalkylene glycol ether. , Hindered esters, silicone oils and the like. As described above, these synthetic oils can be used alone or in combination of two or more, and further, mineral oil and synthetic oil can be used in combination.
金属清浄分散剤としては、アルカリ土類金属スルフォネート、アルカリ土類金属フェネート等が、無灰分散剤としては、アルケニルコハク酸イミド、アルケニルコハク酸エステル、長鎖脂肪酸とポリアミンとのアミド(アミノアミド型)等が、焼き付き摩耗防止剤としては、硫化油脂、硫化オレフィン、サルファイド、リン酸エステル、亜リン酸エステル、チオリン酸エステル等が、酸化防止剤としては、アミン系・フェノール系酸化防止剤等が、腐食防止剤としては、ベンゾトリアゾール、アルケニルコハク酸エステル等が、粘度指数向上剤としてはポリメタクリレート、オレフィンコポリマー等が、流動点降下剤としては、ポリメタクリレート等が、消泡剤としては、シリコン化合物、エステル系消泡剤などが、夫々挙げられる。 Examples of metal detergent dispersants include alkaline earth metal sulfonates and alkaline earth metal phenates. Examples of ashless dispersants include alkenyl succinimides, alkenyl succinates, amides of long-chain fatty acids and polyamines (aminoamide type), and the like. However, seizure wear inhibitors include sulfurized fats and oils, sulfurized olefins, sulfides, phosphate esters, phosphite esters, thiophosphate esters, etc., and antioxidants such as amine and phenolic antioxidants are corrosive. Examples of the inhibitor include benzotriazole and alkenyl succinate, polymethacrylate and olefin copolymer as the viscosity index improver, polymethacrylate as the pour point depressant, silicon compound as the antifoaming agent, Examples thereof include ester-based antifoaming agents.
湿式摩擦特性の評価としては日本建設機械化協会/建設機械用油圧作動油−摩擦特性試験方法(JCMAS P 047:2004)のマイクロクラッチ試験機による摩擦試験方法(JCMAS P 047 4)に準拠して測定を行なった。
以下にマイクロクラッチ試験の詳細な試験方法を示す。
[試験片材質]
クラッチディスクフェーシング材質:D−0512(JASO M349材質)
プレート材質:SS400
[試験条件]
温度:40及び80℃
面圧:1MPa
滑り速度:3.0及び38.0mm/s
摩擦時間:5min
以下に、上記マイクロクラッチ試験条件下での実施例、参考例および比較例により本発明を説明するが、これらは単に例示であり、本発明はこれらによって何ら制限されるものではない。
The wet friction characteristics were evaluated in accordance with the friction test method (JCMAS P 0474) using the micro-clutch tester of the Japan Construction Mechanization Association / Hydraulic hydraulic fluid for construction machinery-Friction characteristics test method (JCMAS P 047: 2004). Was done.
The detailed test method of the micro clutch test is shown below.
[Specimen material]
Clutch disc facing material: D-0512 (JASO M349 material)
Plate material: SS400
[Test conditions]
Temperature: 40 and 80 ° C
Surface pressure: 1MPa
Sliding speed: 3.0 and 38.0 mm / s
Friction time: 5 min
Hereinafter, the present invention will be described by way of examples, reference examples, and comparative examples under the above microclutch test conditions, but these are merely examples, and the present invention is not limited thereto.
〔実施例1〜2、参考例1〜5、および比較例1〜5〕
市販トラクター用オイル(過塩基性カルシウムスルホネート、ジ−2−エチルヘキシルジチオリン酸亜鉛、トリフェニルフォスファイト、ポリブテニルコハク酸イミド、コハク酸エステルが含まれるパッケージ添加剤)を比較例1とし、このオイルにアルコール化合物1、2、3を各々0.2質量%添加した参考例1、2、3、参考例2にりん化合物を組み合せた実施例1、比較例1にアルコール化合物4、5、6、7を各々0.2質量%添加した比較例2、3、4、5、比較例1にアルコール化合物2を0.1質量%、0.3質量%添加した参考例4、5、および参考例5にりん化合物0.2質量%を組み合せた実施例2を試作した。比較例1の構成成分と性状を表1に、実施例、参考例および比較例の配合を表2および表3に示す。
[Examples 1-2, Reference Examples 1-5, and Comparative Examples 1-5]
Commercial oil for tractors (package additive containing overbased calcium sulfonate, zinc di-2-ethylhexyl dithiophosphate, triphenyl phosphite, polybutenyl succinimide, succinate) was used as Comparative Example 1, and this oil Example 1 in which 0.2% by mass of each of alcohol compounds 1, 2, and 3 was added to Example 1, 1 and 3 in which Reference Example 2 was combined with a phosphorus compound, and Comparative Example 1 in which alcohol compounds 4, 5, and 6 were combined. Comparative Examples 2, 3, 4, 5 in which 0.2% by mass of 7 was added, and Reference Examples 4, 5, and 0.1% in which 0.1% by mass and 0.3% by mass of alcohol compound 2 were added to Comparative Example 1 Example 2 was prepared by combining 5 with 0.2% by mass of a phosphorus compound. The components and properties of Comparative Example 1 are shown in Table 1, and the formulations of Examples, Reference Examples and Comparative Examples are shown in Table 2 and Table 3.
実施例および比較例で使用した(A)アルコール化合物および(B)りん化合物
アルコール化合物1:1,2−テトラ/ヘキサデカンジオール混合
アルコール化合物2:1,2−ヘキサデカンジオール
アルコール化合物3:1,2−ドデカンジオール
アルコール化合物4:1−ヘキサデカノール
アルコール化合物5:1−ドデカノール
アルコール化合物6:1−オクタノール
アルコール化合物7:1,2−オクタンジオール
りん化合物 :ジオレイルハイドロジェンホスファイト
(A) Alcohol compound and (B) Phosphorus compound used in Examples and Comparative Examples Alcohol compound 1: 1,2-tetra / hexadecanediol mixed Alcohol compound 2: 1,2-hexadecanediol Alcohol compound 3: 1, 2- Dodecanediol Alcohol compound 4: 1-Hexadecanol Alcohol compound 5: 1-Dodecanol Alcohol compound 6: 1-Octanol Alcohol compound 7: 1,2-Octanediol Phosphorus compound: Dioleyl hydrogen phosphite
比較例1の市販トラクター用オイル性状とその構成成分
実施例および参考例の配合
比較例の配合
試作した実施例、参考例および比較例について、40℃と80℃の油温で、すべり速度が3mm/sと38mm/sの摩擦係数を測定した。その結果を表4および表5に示す。
実施例および参考例のマイクロクラッチ試験測定結果
Example and reference microclutch test measurement results
40℃での試験結果を見て見ると、市販トラクター用オイルの比較例1は摩擦係数μs(3mm/s)が0.108、μd(38mm/s)が0.117で、μs/μdの比率は0.923であったが、参考例1のC14とC16の混合ジオールを添加するとμsは0.082、μdは0.113となり、μs/μdの比率は0.726と低く、静摩擦が低くなり湿式クラッチでの耐スティックスリップが抑制されることが分かる。またC16の1,2−ヘキサデカンジオールはμs/μdの比率が0.741、C12のドデカンジオールは0.739といずれも低く、良好な摩擦特性を与えるが、比較例2のようにモノアルコールであるC16の1−ヘキサデカノールはμs/μdの比率が0.862、1−ドデカノールは0.802、そして、1−オクタンジオールは0.808と、比較例1の市販トラクター用オイルよりも低いμs/μdの比率であったが、参考例と比べると高いμs/μd比となった。
同様に80℃での結果を考察すると、参考例1、2、3のμs/μdの比率は各々0.694、0.692、0.692であるのに対して、比較例1、2、3、4、5のμs/μd比は0.731、0.764、0.736、0.716、0.704となり、40℃の場合と同様に参考例の方が優れた摩擦特性を示した。
また実施例1のように、80℃のμs/μd比は0.659とジオールとジオレイルハイドロジェンフォスファイトを組み合わせると参考例よりも更に摩擦特性が向上した。
Looking at the test results at 40 ° C., Comparative Example 1 of a commercial tractor oil has a friction coefficient μs (3 mm / s) of 0.108, μd (38 mm / s) of 0.117, and μs / μd. Although the ratio was 0.923, when the mixed diol of C14 and C16 of Reference Example 1 was added, μs became 0.082, μd became 0.113, and the ratio of μs / μd was as low as 0.726, so that the static friction was low. It becomes low and it turns out that the anti-stick slip in a wet clutch is suppressed. Further, C16 1,2-hexadecanediol has a ratio of μs / μd of 0.741, and C12 dodecanediol has a low value of 0.739, both of which give good friction characteristics. One C16 1-hexadecanol has a ratio of μs / μd of 0.862, 1-dodecanol is 0.802, and 1-octanediol is 0.808, which is lower than the commercial tractor oil of Comparative Example 1. Although the ratio was μs / μd, the ratio was higher than that of the reference example.
Similarly, considering the results at 80 ° C., the ratios of μs / μd in Reference Examples 1, 2, and 3 are 0.694, 0.692, and 0.692, respectively, whereas Comparative Examples 1, 2, and The μs / μd ratios of 3, 4, and 5 were 0.731, 0.764, 0.736, 0.716, and 0.704, and the reference example showed better friction characteristics as in the case of 40 ° C. It was.
Further, as in Example 1, when the μs / μd ratio at 80 ° C. was 0.659 and diol and dioleyl hydrogen phosphite were combined, the friction characteristics were further improved as compared with the reference example.
さらに参考例4、5で1,2−ヘキサデカンジオールについて添加量を0.1、0.3質量%添加して、摩擦挙動をチェックした。同時に参考例5にジオレイルハイドロジェンフォスファイトを0.2質量%添加した実施例2についても摩擦挙動をチェックした。
その結果、実施例2では参考例4、5よりもさらに摩擦特性を改善出来た。
Furthermore, in Reference Examples 4 and 5, the addition amount of 1,2-hexadecanediol was added at 0.1 and 0.3 mass%, and the friction behavior was checked. At the same time, the friction behavior was also checked for Example 2 in which 0.2% by mass of dioleyl hydrogen phosphite was added to Reference Example 5.
As a result, in Example 2, the friction characteristics could be further improved than in Reference Examples 4 and 5.
Claims (3)
CnH2n+2O2またはCnH2nO2 (式1)
(炭素数nは12から16である)
(RO)2PH=O (式2)
(Rは炭素数が14から18のアルケニル基) Mineral oil and synthetic oil as a base oil, (A) 0.01 to 0.3% by mass of an aliphatic 1,2-diol compound represented by the following general formula (Formula 1) based on the total amount of the composition, and (B) The dialkenyl hydrogen phosphite represented by the general formula (Formula 2) is contained in an amount of 0.05 to 5% by mass based on the total amount of the composition, and the ratio of μ3 / μ38 at 40 ° C. in the microclutch test is 0.8 or less. A wet brake lubricating oil composition.
C n H 2n + 2 O 2 or C n H 2n O 2 (Formula 1)
(The carbon number n is 12 to 16)
(RO) 2 PH = O (Formula 2)
(R is an alkenyl group having 14 to 18 carbon atoms)
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US20170002251A1 (en) | 2015-06-30 | 2017-01-05 | Exxonmobil Chemical Patents Inc. | Glycerol Carbamate Based Lubricant Compositions and Methods of Making and Using Same |
US10844264B2 (en) | 2015-06-30 | 2020-11-24 | Exxonmobil Chemical Patents Inc. | Lubricant compositions comprising diol functional groups and methods of making and using same |
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US3649538A (en) * | 1969-08-27 | 1972-03-14 | Chevron Res | Diol-containing aluminum lubricant |
US4331222A (en) * | 1980-07-07 | 1982-05-25 | Chevron Research Company | Method for reducing brake noise in oil-immersed disc brakes |
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